Pretzel Crusted Chicken

Name: Pretzel Crusted Chicken
Prep time: 15 min
Cook time: 10 min
Total time: 25 min
Cuisine: American
Ingredients: 2 chicken breasts (boneless and skinless ); 1 5-ounce bag pretzels (about 3 cups ); ½ teaspoon paprika; Salt and pepper (to taste); 2 eggs; Vegetable oil (for frying); 2 Tablespoons butter; 2 Tablespoons flour; 2 cups milk; 2 cups sharp cheddar cheese (shredded); 2 Tablespoons whole grain mustard; 1/4 teaspoon cayenne pepper; 1/4 cup flat leaf parsley leaves (a generous handful, chopped); 1/4 small red onion (finely chopped)